Customisable Spool Display Shelf

This model is similar to all of the other interlocking small display shelves only this time you don't have to waste excessive filament and you can recycle your cardboard spools at the same time. The model features a front face with a shelf for the miniature, and the back piece locks the spools together with friction. There is a screw hole in the back piece to attach the whole design to your wall or you can stack it on something else. If you attach it to your wall you don't need to use every hole a couple of screws will be enough to hold most units. If you have any feedback, please let me know.